Set of humeral components for total shoulder prosthesis

Title: Set of humeral components for total shoulder prosthesis

Related Patent Categories: Prosthesis (i.e., Artificial Body Members), Parts Thereof, Or Aids And Accessories Therefor, Implantable Prosthesis, Bone, Joint Bone, Shoulder Joint Bone, Ball And Socket Joint

Brief Patent Description - Full Patent Description - Patent Claims

The Patent Description & Claims data below is from USPTO Patent Application 20050278031, Set of humeral components for total shoulder prosthesis.

What is claimed is:

1. Set of humeral components for a total shoulder prosthesis, in which each component is formed by an anchoring stem and a metaphyseal part which defines a concave surface of articulation globally in the form of a portion of sphere, wherein the offset between the axis of symmetry of said surface and the central axis of said metaphyseal part of said components is variable.

2. The set of components of claim 1, wherein, for each component, said axes are substantially parallel.

3. The set of components of claim 1, wherein, for at least one of said components, said axis of symmetry is located, with respect to said central axis, opposite a median axis of said stem.

4. The set of components of claim 3, wherein the surface of articulation of at least one of said components extends up to the immediately vicinity of the edge of said metaphyseal part, opposite that part of said edge located globally in line with said stem.

5. The set of components of claim 3, wherein the surface of articulation of at least one of said components is intersected by said edge of said metaphyseal part, opposite that part of said edge located globally in line with said stem.

6. The set of components of claim 1, wherein the different components have substantially the same shape, except for the position of said articular surface in said metaphyseal part.

7. The set of components of claim 1, wherein the angle of inclination of said axis of symmetry with respect to a median axis of said stem has substantially the same value for all the components.

8. The set of components of claim 1, wherein for one of said components, said offset is zero, said axes being merged.

9. Total shoulder prosthesis, wherein it comprises a humeral component selected from the set of components of claim 1.

10. The prosthesis of claim 9, wherein it further comprises a glenoidal component forming a convex surface of articulation centred on an axis of symmetry which is not perpendicular to a rear face of said component intended to come into abutment against the glenoid cavity.

11. Method for installing a total shoulder prosthesis comprising steps consisting in: preparing the bones with a view to positioning a glenoidal component and a humeral component; installing on the glenoid cavity a glenoidal component defining a convex articular surface; selecting, from a set of humeral components, a humeral component provided with a concave articular surface adapted to cooperate with a convex articular surface of the glenoidal component, said component substantially not interfering or interfering only little with the pillar of the scapula during a movement of adduction, and installing said humeral component on the humerus.

Brief Patent Description - Full Patent Description - Patent Claims

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Previous Patent Application:
Glenoidal component of a shoulder prosthesis, set of elements constituting such a component and total shoulder prosthesis incorporating such a component
Next Patent Application:
Total shoulder prosthesis or inverted type
Industry Class:
Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor

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